From 293682fff5cba4d4ff08a2afb4f03ac7666b9538 Mon Sep 17 00:00:00 2001
From: Raptor Engineering Development Team <support@raptorengineering.com>
Date: Sat, 13 Jan 2018 20:12:40 -0600
Subject: Enable MAX31785 fan controller

---
 arch/arm/boot/dts/aspeed-bmc-opp-talos.dts | 89 +++++++++++++++++++++++++++++-
 1 file changed, 87 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-talos.dts b/arch/arm/boot/dts/aspeed-bmc-opp-talos.dts
index d40d766c1083..e2b0584cb7d0 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-talos.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-talos.dts
@@ -257,8 +257,93 @@
 &i2c12 {
 	status = "okay";
 
-	/* Fan Controller */
-	/* CPLD */
+	/* Primary Fan Controller */
+	max31785@52 {
+		compatible = "max,max31785";
+		reg = <0x52>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		/* System fan 1 */
+		fan@0 {
+			compatible = "pmbus-fan";
+			reg = <0>;
+			tach-pulses = <1>;
+			maxim,fan-rotor-input = "tach";
+			maxim,fan-pwm-freq = <25000>;
+			maxim,fan-no-watchdog;
+			maxim,fan-no-fault-ramp;
+			maxim,fan-ramp = <2>;
+			maxim,fan-fault-pin-mon;
+		};
+
+		/* System fan 2 */
+		fan@1 {
+			compatible = "pmbus-fan";
+			reg = <1>;
+			tach-pulses = <1>;
+			maxim,fan-rotor-input = "tach";
+			maxim,fan-pwm-freq = <25000>;
+			maxim,fan-no-watchdog;
+			maxim,fan-no-fault-ramp;
+			maxim,fan-ramp = <2>;
+			maxim,fan-fault-pin-mon;
+		};
+
+		/* System fan 3 */
+		fan@2 {
+			compatible = "pmbus-fan";
+			reg = <2>;
+			tach-pulses = <1>;
+			maxim,fan-rotor-input = "tach";
+			maxim,fan-pwm-freq = <25000>;
+			maxim,fan-no-watchdog;
+			maxim,fan-no-fault-ramp;
+			maxim,fan-ramp = <2>;
+			maxim,fan-fault-pin-mon;
+		};
+
+		/* System fan 4 */
+		fan@3 {
+			compatible = "pmbus-fan";
+			reg = <3>;
+			tach-pulses = <1>;
+			maxim,fan-rotor-input = "tach";
+			maxim,fan-pwm-freq = <25000>;
+			maxim,fan-no-watchdog;
+			maxim,fan-no-fault-ramp;
+			maxim,fan-ramp = <2>;
+			maxim,fan-fault-pin-mon;
+		};
+
+		/* CPU 0 fan 0 */
+		fan@4 {
+			compatible = "pmbus-fan";
+			reg = <4>;
+			tach-pulses = <1>;
+			maxim,fan-rotor-input = "tach";
+			maxim,fan-pwm-freq = <25000>;
+			maxim,fan-no-watchdog;
+			maxim,fan-no-fault-ramp;
+			maxim,fan-ramp = <2>;
+			maxim,fan-fault-pin-mon;
+		};
+
+		/* CPU 1 fan 0 */
+		fan@5 {
+			compatible = "pmbus-fan";
+			reg = <5>;
+			tach-pulses = <1>;
+			maxim,fan-rotor-input = "tach";
+			maxim,fan-pwm-freq = <25000>;
+			maxim,fan-no-watchdog;
+			maxim,fan-no-fault-ramp;
+			maxim,fan-ramp = <2>;
+			maxim,fan-fault-pin-mon;
+		};
+	};
+
+	/* FPGA */
 	/* Power Supply */
 	/* Temp Sensor */
 	/* Temp Sensor */
-- 
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